Franz hakdtmuth



(No Model.)

P. HARDTMUTHH PENCIL 0R GRAYON- HOLDER...

Patented May 1 1883.

N PETERS. Phalokilhngn mnn Wallu nglon. ac

' MTE TATE P TE T I OFFICE.

FRANZ HARDTMUTH, OF BUDWEIS, AUSTRIA-HUNGARY.

PENCILQR CRAYON HOLDER.

srncrnca'riolv formingpart of Letters Patent No. 276,812, dated May 1,lees.

Application filed July 24,1882. (No model.)

.To all whom it may concern Beit known that I, FRANZ HARDTMUTH, a

subject of the Emperor of Austria,residing'atthe city of Budweis, in theEmpire of Austria- Hungary, and temporarily at Vienna, haveinventedcertain new and useful I mprovements in Pencil or (lrayon Holders and Ido hereby declare the following to bea full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it'appertains to make and use the same, reference being hadto the accompanying drawings, and to letters or figures of referencemarked thereon, which form a part of this specification.

My invention relates to certain improvements in pencil-holders; anditconsists in constructive features whereby the pencil may be releasedfrom the grippin g-jaws by pressure upon the handle, and again securelyheld against displacement when said pressure upon the handle is removed,as hereinafter fully described, and specifically pointed out in theclaims.

In the accompanying sheet of drawings, Figure 1 is a longitudinalsection, showing the parts of the pencil-holder in their normal positionfor use of the pencil. Fig. 2 isa sectional elevation, showing the parts:of the pencilholder in the position they assume to release the pencilfrom the gripping-jaws. Figs. 3, 4,

and 5 are sections taken on lines or :0, y y," and z z,respectively,'-of Fig. 1

and Fig. 6 is a face view of the guide-plate.

of reference indicatelike parts.

' Ais thehandle, made ofanysuitable material,

In the above figures of drawings like letters such as wood, ivory,rubber, metalfor other pre ferred material. It is tubularand of uniforminterior diameter throughout the greater portion of its length, saidinterior diameter being reduced to form the annular shoulder or abutmenta, from which point it tapers to the solid portion of the said handle,forming at that point an abutment, a and upon the lower end of l thehandle is screwed or otherwise sebearing that abuts against or is seatedupon the abutment or end wall, a of the tapering portion of the cavityof the handle. The tube B, at its lower or outer end,isslitted to form aseries ofgr-ipping-jaws, I), that serve to hold the pencil O, and saidtube is inclosed within a tube,D, thatis provided with a longitudinalslot, 1), (shown in dottedlines,Fig. 2,)at its upper or inner end, andaconical head, d, at its lower or outer end, upon which lattcris screweda conical cap or sleeve, E, whose interior diameter is madeto taper fromits inner to its outer end at which point the aperture is large enoughto allow the pencil G to slide-through without binding it. tube D isscrew-threaded exteriorly, and upon it is fitted a sleeve, f, screwthreaded exteriorly also, and provided at its threaded portion with alongitudinal slot,f that registers with the slot in the tube. To thissleevef are The upper slottedend of attached aseries of spring arms orlevers, f, at 4 within the slot of said unthreaded portion and i be heldthere against longitudinal motion by the nut I), thus locking the sleevef with its spring-levers f, rigidly to the pencil-tube B, and withoutinterfering with the longitudinal niotion of the tube Dupon tube B,forpurposes presently explained.

Upon the upper end of tube D is screwed a nut, b and betweenthe latterand the nut b is mounted a coiled spring, N, that exerts its pressureupon said nut b and tends to draw the tube 1) upward toward the handle,and with it the cap or sleeve E, which latter, by reason of its taperinginterior diameter, compresses the spring gripping-jaws 12 upon thepencil and holds the latter securely in position.

The upper or inner portions otthe head (1" or conical form, so as .topresent an upwardlyinelined face to the end of the spring levers f.These lever arms have their extremities f 2 beveled to fit the inclinedface of the head at, and they are guided by a plate, 6, attached to theupper or inner end of the cap or sleeve E above its screw-threadedportion, which cap is slightly enlarged at that point. The plate 0 has aseries of recesses, 0, equal in number to the number of lever-arms femployed. As shown in Fig. 6, the plate is recessed for the reception ofthe lower or outer end of five such arms, though more or less of themmay be employed, as will be readily understood, and as may beconveniently employed upon a given size of holder.'

"As will be seen, the extent of the movement of the tube D upon tube Bmay be adjusted within certain limits by adjusting the nut b toward orfrom the nut 12*, and thus. cause the cap E to exert more or less powerupon the gripping-jaws, whereby leads. or pencils of differentdiameters, Within certain limits, may be employed with the holder, whichis a great advantage.

The metallic sleeve a on the outer end of the handle has its outerperiphery made tapering inwardly, as shown, and serves to limit theoutward movement of the spring-levers f at their upper end, and alsorelieves the guide-plate c from too great astrain.

From the detailed constructive description of the pencil-holder abovegiven its operation may be described in a few words and readilyunderstood. It will be remembered, first, that the spring-levers farerigidly connected to the lead-holder B, and the latter is rigidlyconnected to the handleA; secondly, that the tube D is rigidly connectedto the tapering cap, E and capable of longitudinal motion upon tube Bthirdly, that the tube B, properly speaking, serves as a rigid bearingto one end of the spring 31 and the tube D as the body upon which saidspring exerts its power. It is evident that when the holder is in itsnormal position, as shown in Fig. 1, the spring 0 presses to itstaperingform, and causes thejaws b" to release the pencil, which is now free toslide out of the holder. The moment, however, that the pressure upon thespring-levers is released the tension of the spring b will again carrythe tube B and parts connected therewith upward andcause thegripping-jaws b to close upon the lead or pencil.

Having now described my invention, what I claim is 1. In apencil-holder, a tube provided with gripping-jaws to contain and gripthe pencil, a handle, and a series of levers rigidly connected with saidpencil-holding tube, and

the gripping-jaws to release the pencil when pressure is applied to thespring-levers, substantially as and for the purpose specified.

2. In a pencil-holder, a tube provided with grippingjaws to contain andgrip the pencil, a hand-1e, and a series of spring-levers,

both rigidly connected with the pencil-hold- 7 ing tube, in combinationwith appliances, substantially as described, to cause the grippingjawsto release the pencil when pressure is applied to. the spring-levers,and again automatically grip the pencil when the pressure appliances,substantially asdescribed, to cause upon the levers is removed,substantially as and for the purposes specified.

3. In a pencil-holder, the combination, with thepencil-holding tube B,provided with gripping-jaws b, the spring-levers f, and handle A,rigidly connected to said tube, of an inclosing-tube capable oflongitudinal motion upon tube B, and carrying a tapering sleeve or capadapted to engage the gripping-jaws of tube B, and appliances,substantially as. described, whereby said tapering sleeve or cap isnormally held in, engagement with the gripping-jaws and releasedtherefrom by the compression of the spring-levers, as set forth.

4. In a pencil-holder, the combination of the tube B, having aprojecting locking-plate, b the spring-levers f, their slottedretainingsleeve f, and the nut 'b, with the slotted tube D, whereby saidtube Band spring-levers are rigidly connected together withoutinterfering with the longitudinal motion of the tube D 1 upon tube B,substantially as and for the purposes specified.

pencil-holding tube provided with grippingjaws, an inclosing-tubeprovided with means, substantially as described, to lock said jaws uponthe pencil, said inclosing -tube being capable of longitudinal motionupon the penciltube, a series of spring-levers rigidly connected withthe pencil-holding tube, and adapted for operationto. unlock or releasethe gripping-jaws through the medium of the inclosing-tube, andappliances whereby the longitudinal movement of the latter tube may beregulated to lock the gripping-jaws with more orless force upon thepencil, or to adapt the holder for usewith pencils of differentdiameter, as set forth.

6. The combination of the tube B, the spring-levers f, rigidly connectedtherewith, the slotted tube D, carrying the cap E, thelocking-nuts b?bfland the spring b all con struoted and arranged for cooperation asdescribed. 7

7. Thecombinatiomwith the tube B and its spring-levers f, of thespring-actuated tube 27o,s12 i 3 D, provided with a head, d, and thesleeve or structed and arranged for co-operetion subcap E, .allconstructed for (Bo-operation substantielly as and for the purposesspecified.

stantially as and for" the purposes specified. In testimony whereof Iaffix my signature in 8. The combination of the tube B, its presence oftwo witnesses.

5 spring-levers f, and the handle A, provided FRANZ HARDTMUTH. with thesleeve a of the spring-actuated tube D, provided with the head d,- andthe sleeve E, provided with the guide-plate c, all con- Witnesses HANSKOTTAS, ADOLF PECHMANN.

